Table 2.

The relationship between age, smoking pack-year, and COPD duration, beck anxiety, and beck depression scores before and after coil treatment.

	Test	BAI (pre)	BDI-I (pre)	BAI (post)	BDI-I (post)
Age	Correlation	0.109	0.393	0.061	0.287
	p	0.637	0.078	0.793	0.208
	n	21	21	21	21
Smoking pack-year	Correlation	0.150	0.165	−0.060	−0.057
	p	0.517	0.475	0.796	0.805
	n	21	21	21	21
COPD duration (year)	Correlation	0.291	−0.073	0.148	−0.156
	p	0.200	0.753	0.522	0.500
	n	21	21	21	21

BAI (pre), precoil beck anxiety inventory; BDI-I (pre), precoil beck depression inventory; BAI (post), postcoil beck anxiety inventory; BDI-I (post), postcoil beck depression inventory.